Mars - Wikipedia Mars formed along with the other planets approximately 4 5 billion years ago During the martian Noachian period (4 5 to 3 5 billion years ago), its surface was marked by meteor impacts, valley formation, erosion, the possible presence of water oceans and the loss of its magnetosphere
Mars: Facts - NASA Science Mars – the fourth planet from the Sun – is a dusty, cold, desert world with a very thin atmosphere This dynamic planet has seasons, polar ice caps, extinct volcanoes, canyons and weather
Mars | Facts, Surface, Moons, Temperature, Atmosphere | Britannica Mars is the fourth planet in the solar system in order of distance from the Sun and the seventh in size and mass It is a periodically conspicuous reddish object in the night sky There are intriguing clues that billions of years ago Mars was even more Earth-like than today
Mars | National Air and Space Museum A Rocky Planet The planets closest to the Sun—Mars, Earth, Venus, and Mercury—are made mostly of rock The rocky planets all formed in our inner solar system Their geological history is preserved on their surfaces Their landscapes reveal the processes that shaped them: impacts, crustal movements, volcanic activity, and erosion Gravity, temperature, air, and water all play leading roles
Mars, the red planet - The Planetary Society Mars, the red planet Highlights Mars once had liquid water on its surface and could have supported life Scientists are uncovering how Mars transformed into the cold, dry desert world it is today We explore Mars to understand the planet's history and look for evidence of past or even present life
NASA Discovered a Rock on Mars That Doesnt Belong There More than five years into its mission, NASA's Mars Perseverance rover is still ambling across the surface of the red planet, doing what any five-year-old loves to do – stopping to look at every rock on its path